A source-code browsing, analysis and editing environment for large C projects.
My review actually depends. If you use the latest 1.9.4 kscope, it sucks. If you download source for say, 1.6.2 and compile it, it's great. Difference is that in 1.6.2 there are extra tabs that give you easy view of functions and files you can simply click to if you want to see them. I don't see how 1.9.4 does that.